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Third and fourth optical transitions in semiconducting carbon nanotubes.
We have studied the optical transition energies of single-wall carbon nanotubes over broad diameter (0.7-2.3 nm) and energy (1.26-2.71 eV) ranges, using their radial breathing mode Raman spectra. We… Expand
Polarization dependence of the optical absorption of single-walled carbon nanotubes.
- Y. Murakami, E. Einarsson, T. Edamura, S. Maruyama
- Physics, Medicine
- Physical review letters
- 2 March 2005
Anisotropic optical absorption properties of single-walled carbon nanotubes (SWNTs) are determined from a vertically aligned SWNT film for 0.5-6 eV. Absorption peaks at 4.5 and 5.25 eV are found to… Expand
Growth process of vertically aligned single-walled carbon nanotubes
Vertically aligned single-walled carbon nanotube films up to 5 μm thick were produced by an alcohol CVD process, in which hydrogen was supplied during the heating-up stage only. A time-progressive… Expand
Growth dynamics of vertically aligned single-walled carbon nanotubes from in situ measurements
An in situ optical absorbance measurement was used to study the growth dynamics of vertically aligned single-walled carbon nanotubes (VA-SWCNTs) synthesized by chemical vapor deposition of ethanol.… Expand
Controlled silica precipitation in geothermal brine at the reykjanes geo-chemicals plant
- S. R. Gudmundsson, E. Einarsson
Abstract This article describes how silica was precipitated in an electromagnetic field from silica supersaturated brine. At the Reykjanes Geo-Chemicals plant deposition of silica was a serious… Expand
Polarization dependent optical absorption properties of single-walled carbon nanotubes and methodology for the evaluation of their morphology
Abstract Polarization dependence of the optical absorption properties of SWNTs is presented and investigated in detail for the energy range 0.5–6 eV. We found that the absorption peaks in the UV… Expand
Controllable Expansion of Single-Walled Carbon Nanotube Dispersions Using Density Gradient Ultracentrifugation
We present a protocol to selectively isolate single-walled carbon nanotubes (SWNTs) with different chiralities in a full-colored “rainbow” expansion using density gradient ultracentrifugation (DGU).… Expand
Diameter modulation of vertically aligned single-walled carbon nanotubes.
We demonstrate wide-range diameter modulation of vertically aligned single-walled carbon nanotubes (SWNTs) using a wet chemistry prepared catalyst. In order to ensure compatibility to electronic… Expand
Self-Limiting Chemical Vapor Deposition Growth of Monolayer Graphene from Ethanol
Using low-pressure chemical vapor deposition (LPCVD), we, for the first time, realize the self-limiting growth behavior of monolayer graphene on commercially available electroplated copper foils from… Expand
Self-Assembled Microhoneycomb Network of Single-Walled Carbon Nanotubes for Solar Cells
We propose a water vapor treatment to direct the formation of single-walled carbon nanotubes (SWNTs) into a self-assembled microhoneycomb network (μ-HN) for the application to SWNT-Si solar cells.… Expand